Battery box



Juiy 1 1924 G; c. STEBBINS BATTERY BOX Filed Aug., 24 1922 attozmqn 45shown in the drawin Patented July 1, 1924.

Ulltifi STATES GEORGE o. srnnnms, or ASHTABULA, OHIO, ASSIGNOR T summon:MANUFACTUR- mo COMPANY, OF CLEVELAND, omo, A CORPORATION OE. DELAWARE.

BATTERY Box.

Application filed August 24, 1922. Serial No. 584,061.

To (/ZZ whom it may concern:

Be it known that I, Geonon C. S'rneaiNs, a citizen of the United States,residing at Ashtabula. in the county of Ashtabula and 5 State of Ohio,have invented certain new and useful Improvements in Battery Boxes, ofwhich the following is a specification.

This invention relates to battery boxes and particularly to thearrangement for 1 sealing the cover in place.

As heretofore constructed the covers of battery boxes have been held inplace by a suitable sealing compound usually made of asphaltum, pitch orsome suitable fusible gum or other material which is worked into placearound the edges of the cover to seal it in place. Under the strain ofuse the joint between the sealing compoiind and either the cover or boxwall frequently works loose or open so that acid escapes, not onlycausing deterioration .of the cell itself but with possible injury toparts withwhich the acid may come in contact.

The present invention has for its object to generally improve theconstruction of the box by providing a special form of channel or seatfor-the sealing compound, the arrangement being such as to afford a morefirm or secure bond between the sealing compound and the wall of the boxand a more tortuous passage sothat in any event acid is less likely toescape.

Further objects of the invention are in part obvious and in part willappear more 36 in detail hereinafter.

In the drawings, which represent one suit able embodiment of theinvention, Fig.1 is 'a plan view; and Fig; 2 is an elevation of one sideof the box, part of the cells being 40 broken out and in elevation onthe line 2-2, Fig. 1. 4

The invention may be used with battery boxes of any form andconstruction andmade of any suitable material. The box is a one-piecemolded. box formed of a suitable rubber-like com-- osition molded intohard solid form. Said box comprises side and end walls 1, 2 con nectedby cross partitions 3:, the end walls .being thickened or reinforced attheir upper ,rated portions of saidcompound flow into ends to receiveopenings 4 through which are passed the shanks of the bail-like handlemembers 5.' The box shown has two parti tions and consequently threecells. ,6 represents the bonds or connectors between electrodes in thedifferent cells, and 7 fillingcaps threaded into openings in the cellcover members 8, each of which has inclined side walls 9 and bottomhorizontal flanges 10. The bottom flanges of the covers are made of suchexternal size as to fit snugly within the cell walls and seat eitherdirectly upon the battery plates, indicated generally at 11, or, ifdesired, upon slight shoulders 12 in' the box walls. The inclination ofthe side walls 9 of the covers is so formed and the box walls andpartitions are so arranged that when the covers are pushed home to theirfinal position, as shown in Fig. 2, the cover flanges are below theupper edges of the box walls. Around all the edges of each cover the boxwalls, including both the side and end walls and the cross walls orpartitions, are provided with a recess or oove, indicated generally at.13, forming with the external space in that part of the cover bev lowthe top of the box a fairlylarge circumferentially extending channel toreceive the sealing compound. The outer walls of this channel-thosewallswhich are in the walls of the boxitself, are preferably ofcontinuous dove-tail for as indicated at 13, Fig. 1. Consequently, whenthe channel is filled with the fusible sealing compound 14, sepatlibdovetail recesses 15, so that the sealing compound is firmly bound ortied to the box walls and will not readily separate therefrom. Thecompound itself is somewhat flexible and will move slightly with slightflexing of the side or end box walls, but a clear joint or crack willnot open up, and the escape of acid is therefore practically whollyprevented.

What I claim is 1. A battery box, comprising side and end wallssurrounding a cell chamber, said walls. being rovided with a channelhaving sepa: rated dbvetail portions, a cover for said box and a sealingcompound filling the dovetail 100 ommportions of said i'ecass holdingthe cover mil portions, a cover for each cell 0% m placo. and fusiblesealing material filling said. do v 2; A battery Tioox, having side andand tail grooves and holding the covers in Wallis and cross partitionsforming :1- p111- and preventing the escape of acid. 5 mlifizy ofmolichambers, said side and. end In testimony whereof I hereby affix 111 andpartitions being provided around signature. upper odlges with channoighaving dove- GJEURGE G. STEBBINS

